Tinner&#39;s mandrel.



No. 776,733. PATENTBD DEC. 6, 1904. H. FLYNT.

TINNERS MANDRBL.

APPLIOATION Hmm DBO. 15, 1902.

- No MODEL. 2 SHEETS-SHEET 1.

`:ul-wlllllllm. 77 u v HEMI-77 Tlzjzxrt j By L d am ATTORNEY No.'776,733. PATBNTED DEG. 6, 1904.

ILPLYNT. n TINNERS MANDRBL.

v APPLICATION FILED DEO. 15, 1902. N() MODEL. l 2 SHEETS-BHBBT /N VENroh Eremyl'lrlmt l f J/' ATroffNEy UNTTED STnTnsy Fatented December 6,1904.

HENRY FLYNT, OF KANSAS CITY, MISSOURI.

TINNERS IVIANDREL..

SPECIFICATION forming part of Letters Patent N 0,776,733, dated December6, 1904. Application led December l5, 1902. Serial No. 135,185. (Nomodel.)

all whom it may concern:

.- it known that l, H ENRY F LYNT, a citizen e United States oi'America, and a resioi Kansas Oity, in the county ot' Jackson State ofMissouri, have invented a new and useful Improvement in TinnersMandrels, oi' which the following is a specific' tion, reference beinghad therein to the accompanying drawings, forming a part thereof.

My invention relates to improvements in tinners mandrels.

r1`he object ot my invention is to provide a mandrel of the kinddescribed which will retain its original shape despite hard and longusage and will not be forced by continual pounding thereon from astraight to a curved form.

Another object is to provide a mandrel which by its peculiar Jform willpresent a stiff and unyielding support upon which hammering may be done.

A further object of my invention is to provide a detachable head whichmay be adjusted longitudinally on the mandrel and also adj usted thereonto two positions at right angles to each other.

My invention provides further novel means for locking the head to themandrel.

My invention yprovides further means by which the tubular mandrel may beemployed as a support for a tool-holding device.

Other novel features are hereinafter `fully described and claimed.

ln the accompanying drawings, which illustrate my invention, Figure 1 isa cross-section oi' the mandrel. Fig. 2 is a Side elevation view showingthe head mounted on the man drel in one position, a portion of thesupporting-bench being shown in vertical section. Fig. 3 is a verticallongitudinal sectional view taken on the dotted line L oi' Fig. a. Fig.4: is a top view with the head mounted on the mandrel. In this view thesecond position oil the head is shown in dotted lines. Fig'. 5 is acentral vertical sectional view of the detachable head. Fig. 6 is across-section taken on the dotted line c Z of Fig. 4. Fig. 7 is acentral vertical cross-section view of the head. Fig. 8 is an under viewoi' the head shown in Figs. 2, 3, 4:, 5, 6. and 7. Fig. 9 is a centralvertical sectional view oi' the mandrel mounted vertically on a base andshowing' a tool mounted in a tool-holder, which in turn is mounted inthe upper end oi the mandrel.

Fig. l() is a side elevation view ot' the.parts.

shown in Fig. 9, the tool in this view being shown in the verticalsocket oi' the toolholder. Fig. 11 is a plan view of what is shown inFig. 10, the tool being removed from the tool-holder. Fig. 12 is abottom view oi a modified lorm of head. Fig. 13 is a side elevation viewoi' the tool-holder. Fig. 11i is a front end view of the mandrel,having' mounted thereon the modited form ot head, a portion oi'I whichis shown in section, so as to disclose the construction oi' clampingmechanism. Fig. 15 is a perspective view ot' one of the securing-platesot' the modilied form of head shown in Figs. 12 and 111. Fig. 16 is avertical sectional view of the mandrel and showing a dii'ferent manneroi' applying' the clutch thereto than the manner shown in Fig. 6. Fig.17 is a side elevation view of the tool-holder, taken at right angles tothe position shown in Fig. 13.

Similar characters ot' reference indicate similar parts` r1`he mandrelcomprises a cylindrical tubular core 1, preferably of wrought-iron,around which is east an iron covering 2, provided with four slideways orgrooves 3 and 4t, disposed longitudinally two at each side of themandrel and extending the i'ull length thereof and having the slideways3 disposed above the slideways 4:. The upper .side of the mandrel isconvexly curved, and the under side is preferably fiat and provided itsfull length with two parallel grooves 5 and 6 oi' different widths iorgrooving together lap-joints.

7 indicates the bench, provided with a vertical hole therethrough inwhich is mounted a clutch 8, having oppositely -disposedinwardly-extcnding arms 9 adapted to enter, respectively, the grooves f1ol'l the mandrel. The clutch 8 is provided at its lower end with avertical screw-threaded shank 10, on which is mounted a nut 11, havingan operating-arm 412. A washer 13 `may be mounted on the shank 10 toclamp against the under side of the bench 7, as shown in Fig. 2.

An adjustable detachable head 14 is provided on its under side with twointersecting grooves 15 and 16, respectively disposed, preferably, atright angles to each other and fitted to the upper side of themandrel-covering 2. The head may thus be adjusted to two positions onthe mandrel at right angles to each other, thus enabling the workmen tohave the side of the head desired disposed at the front. Upon one sideof the groove 15 in the head are provided two projections 17, whichextend inwardly and are adapted to enter one of the upper grooves 3 inthe mandrel. Extending inwardly through screw threaded holes provided inthe head upon the other side of groove 15 are two screws 18, so disposedas to be adapted to enter the opposite groove 3 in the mandrel. Similarscrews 19 are similarly mounted in the head upon one side of the groove16 of the head, and oppo- Site the said screws 19 are providedprojections 20. The screws 19 and projections 2O are so disposed as toengage the upper grooves 3, respectively, of the mandrel when the headis in the position shown in Fig'. 4 in dotted lines.

In assembling the parts in the positions shown in Figs. 2, 3, and 4 theclutch 8 is slipped onto the mandrel, with the arms 9 engaging the lowergrooves 4. The shank 10 is then thrust through the hole in the bench,after which the washer 13 and nut 11 are placed on the shank, the nutbeing turned until the washer bears upon the under side of the bench.rIhe head is then placed on the mandrel,with the groove 15fitted theretoand the projections 17 mounted in the right groove 3, as viewed in Fig.6. The screws 18 are then turned so as to enter the upper left groove 3,thus securely locking the head on the mandrel. If it is desired tochange the head to the position shown in Fig. 4 in dotted lines, thescrews 18 are loosened and the head removed and turned so that thegroove 16 is fitted to the top of the mandrel, the projections 20 beingfirst entered into the right groove 3, after which the screws 19 are soturned as to enter the left groove 3.

In placing' the head on or taking' it off the mandrel it is notnecessary to slide it to the end of the mandrel; but it can be removedby first loosening the set-screws and lifting it upwardly and to theright, and by reversing tlhis operation it may be replaced on the mancrel.

In Figs. 12 and 14 I have shown a modified form of securing device forthe head. In this form upon each side of the grooves 15 and 16 aremounted the plates 21, each provided with a screw-hole 22, having,preferably, the form of a right angle. Through each screw-hole 22 is ascrew 23, which is fitted to a hole in the under side of the head. yreason of the shape of the hole 22 the plates 21 may be adjusted towardand from the grooves 15 and 16,

respectively, and then locked in position by properly turning the screws23 so that the heads will bear against the under sides of the plates 21.The disposition of the plates 21 on the head is such that the plates maybe adjusted to engage the upper grooves 3 in the mandrel when the headis in either of the two positions in which it may be mounted on themandrel. By releasing the screws 23 on one side of the head the plates21 on that side may be pulled outwardly, thus releasing that side of thehead from the mandrel, after which the head may be removed by upwardlyturning the released side of the head. At different places along themandrel may be provided a series of holes 24, which extend through thecore 1 and are screw-threaded. As shown in Fig. 16, the shank 10 may beextended through the bench in a position the reverse of that shown inFig. 2 and made to engage one of the holes 24, thus firmly securing themandrel to the bench.

In Figs. 9, 10, and 11 I have shown. how the mandrel may be employed tosupport a tool-holder. In so using the mandrel it is placed in avertical position upon a base 25, which is provided with a vertical studor shank 26, which enters the lower end of the core 1, to which it issecured by means of a set-screw 27, mounted in one of the holes 24. Thebase 25 may be secured to the floor by lag-screws 28, extendingvertically therethrough. In the upper end of the core is placed theshank 29, which is held in place by a set-screw 30, mounted in one ofthe holes 24 in the mandrel. rIhe upper end of the tool-holder isprovided with a vertical socket 31, adapted to receive the shank of atool 32, as shown in Fig'. 10. In the head of the tool-holder at rightangles to the socket 31 is a socket 33, in which may be placed the shankof a tool, as shown in Fig. 9. The tool-holder is preferably providedwith an annular flange 34 to rest upon the upper end of the mandrel. Asthe two ends of the mandrel are preferably beveled the upper end of thebase 25 may be correspondingly beveled, so that the lower end of themandrel may have a broad surface to bear upon. If desired, the head 14may be detached from the mandrel and used separately.

I have found that a mandrel constructed with a wrought-iron cylindricaltubular core having an iron covering cast about the core, so as tocompletely encircle the same, provides an extremely stiff unyieldingsupport on which to hammer and one that will not be stretched ordistorted by constant hammering upon it.

My invention may be modified in different ways without departing fromits spirit.

Having thus described my invention, what IOO IIO

lf claim, and desire to secure by Letters Patent, is-

l. Atinners mandrel comprising a body having a tubular core of one metaland a covering encircling the same of another metal, the covering beingprovided with two slideways one at each side and having' also alongitudinal g'roove in its under side, substantially as described.

2. A tinners mandrel comprising a body having a tubular core and a coverencircling' the same, the covering being' provided with two slidewaysone at each side and having' also a curved upper surface and a flatunder side in which are two longitudinal grooves of diierent widths,substantially as described.

3. A tinners mandrel comprising a'body having' a tubular core oi onemetal and a cov erin g therefor of another metal, the covering being'provided with two slideways one at each side and a clutch adapted toengag'e the said slideways and provided with means for locking theclutch to a support, substantially as described.

4. The combination with a mandrel, of a head provided on its Linder sidewith two grooves disposed transversely with respect to each other, andmeans for securing' the mandrel to the head when it is placed ineitherof the said grooves, substantially as described.

5. The combination ,with a mandrel provided with two slideways, one ateach side, of a head provided on its under side with two groovesdisposed transversely with respect to each other, and means provided onthe head for engaging the slideways when the mandrel is placed in eitherof said grooves, substantially as described.

6, The combination with a mandrel provided with four siideways disposedtwo at each side one above the other, of a head adjustable lengthwise onthe mandrel and provided with means for engaging the upper slideways,and a clutch provided with means for engaging the lower slideways andprovided with means for securing the clutch to a support, substantiallyas described.

7. rlhe combination with a mandrel provided with two longitudinalgrooves one at each side, of a head provided on its under side with twogrooves disposed transversely with respect to eachother, the head beingprovided on one side of each of said grooves therein with a projectionadapted to enter one oi' the grooves in the mandrel, andareleasablelocking device provided upon the opposite side of each of thegrooves in the head and adapted to engage the groove in the mandrelopposite the groove which is engaged by the projections on the head,substantially as described.

8. The combination with a mandrel provided with four longitudinalslideways disposed two on each side one above the other,

or' a head provided on its under side with two grooves disposedtransversely with respect to each other and adapted each to ht the uppersurface of the mandrel, means by which the head' engages the upperslideways, and a clutch provided with means igor engaging' the lowerslideways, substantially as described.

9. The combination with a mandrel provided with four longitudinalgrooves disposed two at each side ot' the mandrel one above the other,of a clutch provided with means for engaging' the lower grooves andprovided with means for locking the clutch to a support, and a headprovided on its under sido with two grooves disposed transversely withrespect to each other and having' 'fou r projections adapted to engagethe grooves in the mandrel and disposed two at one side ot each oi" thegrooves in the head, and provided also with releasable locking devicesAfor engaging the grooves in the mandrel and disposed respectivelyopposite the'said projections on the head, substantially as described.

l0. The combination with a tinners mandrel comprising a tubular body, oia base provided with a stud adapted to be inserted in one end of themandrel, and a tool-holding member provided with a stud adapted to enterthe other end of the mandrel, the tool-holder being provided with asocket adapted to receive the shank of a tool, substantially asdescribed.

11. The combination with a mandrel provided with two slideways disposedone at each side,of a head longitudinally adjustable on the mandrel andprovided on one side with means for engaging the adjacent slideway, andprovided on the other side with a releasable locking device forengagii'ig the other slideway, substantially as described.

l2. The combination with a mandrel provided with two slideways disposedone at each side of the mandrel, of a head longitudinally adjustable onthe mandrel and adjustable to two positions on the mandrel respectivelyat right angles toV each other and provided with means for engaging oneof the slideways when in either of said two positions, and releasablelocking means for engaging the other slideway when the head is in eitherof said positions, substantially as described.

13. The combination with a mandrel, of a head longitudinally adjustablethereon and provided with means for engaging one side oi. the mandrel,releasable locking means for engaging the other side of the mandrel, anda clutch provided with means for engaging the mandrel and a suitablesupport, substantially as described.

la. The combination with a mandrel provided with two slideways one ateach side, ot' a head longitudinally movable thereon and provided withmeans for adjustment on the mandrel to two positions respectively atright angles to each other, and also provided with means for engagingthe two slideways in the mandrel when in either of said two positions,and a clutch longitudinally adjustable on the IOO mandrel and providedwith means for clamping the mandrel to a support, substantially asdescribed.

15. The combination with a tubular mandrel provided with four groovesdisposed two at each side one above the other, of a head longitudinall yadjustable on the mandrel and provided with means for engaging the upperor' said grooves the head being adjustable on the mandrel to twopositions disposed at rig'ht angles to each other, and a securing deviceprovided with means for engaging the lower of said grooves and havingmeans for securing the said device to a suitable support, substantiallyas described.

16. A head for a mandrel provided on one side with two grooves disposedat right angles to and intersecting each other and adapted to receivetherein at different times a supporting-mandrel, substantially asdescribed.

17. A head for a mandrel provided on one side with two intersecting'grooves and means for engaging a mandrel when the same is disposed ineither of said grooves, substantially as described.

18. A head for a mandrel provided on one side with two intersectinggrooves adapted to receive therein at dierent times a supporting-mandreland having projections at each side of and extending inwardly beyondeach of said grooves for engaging the supportingmandrel, substantiallyas described.

In testimony whereof I have signed my name to this speciiication in thepresence of two subscribing witnesses.

HENRY FLYNT.

l/Vitness es l WARREN D. House, J Essm R. CoMsTocK.

iiffs. 77g/ 7 5f? Correction in Letters Patent Noi 1t is herebycertified that Letters Patent No. 776,783, granted December 6,19%,

upon the application of Henry Flynt, of Kansas City, Missouri, for animprovement in Tinners Mandrels, Was erroneously issued to saidF1ynt-,whereas said Letters Patent should have been issued to Laura W.Page, administratrirv of said Henry Fly/nt,

deceased, as shown by the records of this ofice; and that the saidLetters Patent should be read with this correction therein that thesaine may conform to the record ofthe case in the Patent Oice.

Signed and sealed this 3d day of January, A. D., 1905.

F. I. ALLEN,

Commissioner of Patents.

[SEAL]

